United States Solar-Storage-Charging Project Case
Case introduction

CASE

Case

United States Solar-Storage-Charging Project Case

The project provides an efficient, environmentally friendly, and cost-effective charging solution for electric vehicles, while enhancing the energy utilization and operational profitability of the parking lot.



Project Introduction

The project is located in a large commercial parking lot in Las Vegas, Nevada, USA. It provides an efficient, environmentally friendly, and cost-effective charging solution for electric vehicles, while enhancing the energy utilization and operational profitability of the parking lot.

Project Details

The entire solar-storage-charging system covers an area of approximately 2,000 square meters. The photovoltaic generation system has an installed capacity of 0.5 MW, with 1,250 high-efficiency monocrystalline silicon solar panels arranged in a block layout to fully utilize the parking lot’s rooftop and idle spaces.

The energy storage system consists of lithium battery storage cabinets with a total capacity of 215 kWh, which can store excess electricity generated by the solar panels and supply power to the charging stations during nighttime or periods of insufficient sunlight.

The charging station area is equipped with 10 fast-charging stations, each with a 60 kW charging power, capable of meeting the electric vehicle charging needs of surrounding users. On average, each charging station can handle 15 to 20 charging sessions per day.

Applications

During the day, when sunlight is abundant, the photovoltaic system supplies electricity to the charging stations while storing excess power in the energy storage system. At night or during cloudy weather, the energy storage system discharges power to continue supplying the charging stations, ensuring uninterrupted charging services. For electric vehicle users, this system allows them to charge their vehicles at any time and location with lower costs and faster speeds, effectively alleviating “range anxiety.”

Main Equipment

Photovoltaic Panels: High-efficiency monocrystalline silicon panels with a photoelectric conversion efficiency of over 20.5%, offering excellent low-light performance to continue generating power in the early morning, evening, or on cloudy days, making them suitable for the changing climate conditions of Las Vegas.

Energy Storage System: Lithium battery storage cabinets with a long cycle life of over 6,000 cycles and high charge-discharge efficiency, enabling efficient storage and release of electricity within a short time.

Charging Stations: Capable of peak charging power up to 250 kW, significantly reducing charging time and enhancing the user experience. The stations also support multiple payment methods for convenience.



Project advantages

Strong Energy Supply Stability
Strong Energy Supply Stability
Through the integrated design of "solar-storage-charging," the project overcomes the limitations of pure photovoltaic power generation, which is heavily influenced by weather and day-night changes.
Strong Environmental Friendliness
Strong Environmental Friendliness
The project generates an average annual power output of approximately 650,000 kWh, which is equivalent to reducing carbon dioxide emissions by 450 tons.
Significant Cost-Effectiveness
Significant Cost-Effectiveness
After meeting the electricity needs for its own charging facilities and energy storage, the excess electricity generated by the photovoltaic system can be sold to the grid, increasing project revenue.

Core products

Satellite Communication Energy Cabinet
Satellite Communication Energy Cabinet

The Satellite Communication Energy Cabinet is a PV energy storage cabinet from Highjoule Technology Group designed specifically for off-grid satellite communication sites. The system consists of PV modules, an MPPT solar controller, an LFP (Lithium Iron Phosphate) battery pack, a thermal management system, and a power distribution unit, forming a complete off-grid PV generation and energy storage system that provides stable power to satellite communication base stations. The system adopts a modular design and can be efficiently operated and maintained via local and remote monitoring. It supplies 48V DC and AC 120V–200V power to satellite and other industry communication equipment, supporting floor-standing and pole-mount installation.

Outdoor Battery Cabinet
Outdoor Battery Cabinet

The Outdoor Battery product line is centered on green low-carbon, high-efficiency, and intelligent coordination principles. It covers both indoor and outdoor configurations, with lithium batteries (or lead-acid batteries) forming battery energy storage cabinets. Each cabinet also houses environmental sensors, battery circuit breakers, battery cables, and thermal management accessories to form an integrated battery cabinet.

Hybrid Power System
Hybrid Power System

The Site Hybrid Power System is a next-generation multi-energy integrated power supply for 4G/5G base stations, communication equipment rooms, edge data centers, and outdoor compact sites. It breaks the traditional “single grid input, single DC output” architecture to achieve multi-source energy input + multi-voltage output + intelligent coordinated dispatch. At the site level, it accommodates grid power, PV, energy storage, diesel generators, and other sources, delivering a highly reliable, efficient, and simply deployable power framework for 5G equipment, transmission equipment, and IoT loads. Power range: 6 kW–36 kW; available in both 3U and 1U circuit breaker configurations.

Stacked-PV MPPT Solar Controller
Stacked-PV MPPT Solar Controller

The Stacked-PV MPPT Solar Controller is specially developed for PV capacity expansion at base station sites. Using a series-connection scheme, the system consists of PV modules, a stacked-PV MPPT controller, and a DC meter. Each PV string is series-connected to the controller, which steps down the module output voltage to −48V and injects it onto the rectifier output busbar to supply DC loads. Designed for communication base stations, it supports wall-mount and pole-mount installation. The product is available in outdoor and rack-mount versions.

Outdoor Hybrid Energy Cabinet
Outdoor Hybrid Energy Cabinet

The products deeply integrate AC/DC conversion, multi-energy intelligent scheduling, energy storage charge/discharge management, and remote monitoring technologies. Flexibly deployable in indoor equipment rooms, outdoor 5G base stations, and remote sites, they ensure uninterrupted power for communications and critical loads while maximizing green energy consumption, reducing energy use and carbon emissions, and upgrading traditional power supply to a clean, intelligent, integrated site energy solution.

Solution

Professional Integrated "Turnkey" Service System

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